/*
 * Copyright (c) 1982, 1986, 1988, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *  @(#)syslog.h    8.1 (Berkeley) 6/2/93
 */

#define _PATH_LOG   "/dev/log"

#include <stdarg.h>

/*
 * priorities/facilities are encoded into a single 32-bit quantity, where the
 * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
 * (0-big number).  Both the priorities and the facilities map roughly
 * one-to-one to strings in the syslogd(8) source code.  This mapping is
 * included in this file.
 *
 * priorities (these are ordered)
 */
#define LOG_EMERG   0   /* system is unusable */
#define LOG_ALERT   1   /* action must be taken immediately */
#define LOG_CRIT    2   /* critical conditions */
#define LOG_ERR     3   /* error conditions */
#define LOG_WARNING 4   /* warning conditions */
#define LOG_NOTICE  5   /* normal but significant condition */
#define LOG_INFO    6   /* informational */
#define LOG_DEBUG   7   /* debug-level messages */

#define LOG_PRIMASK 0x0f    /* mask to extract priority part (internal) */
                            /* extract priority */

#define LOG_PRI(p)              ((p) & LOG_PRIMASK)
#define LOG_MAKEPRI(fac, pri)   (((fac) << 3) | (pri))

#ifdef SYSLOG_NAMES
#define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
                                /* mark "facility" */
#define INTERNAL_MARK   LOG_MAKEPRI(LOG_NFACILITIES, 0)
typedef struct _code {
    char    *c_name;
    int     c_val;
} CODE;

CODE prioritynames[] = {
    "alert",    LOG_ALERT,
    "crit",     LOG_CRIT,
    "debug",    LOG_DEBUG,
    "emerg",    LOG_EMERG,
    "err",      LOG_ERR,
    "error",    LOG_ERR,            /* DEPRECATED */
    "info",     LOG_INFO,
    "none",     INTERNAL_NOPRI,     /* INTERNAL */
    "notice",   LOG_NOTICE,
    "panic",    LOG_EMERG,          /* DEPRECATED */
    "warn",     LOG_WARNING,        /* DEPRECATED */
    "warning",  LOG_WARNING,
    NULL,       -1,
};
#endif

/* facility codes */
#define LOG_KERN        (0<<3)  /* kernel messages */
#define LOG_USER        (1<<3)  /* random user-level messages */
#define LOG_MAIL        (2<<3)  /* mail system */
#define LOG_DAEMON      (3<<3)  /* system daemons */
#define LOG_AUTH        (4<<3)  /* security/authorization messages */
#define LOG_SYSLOG      (5<<3)  /* messages generated internally by syslogd */
#define LOG_LPR         (6<<3)  /* line printer subsystem */
#define LOG_NEWS        (7<<3)  /* network news subsystem */
#define LOG_UUCP        (8<<3)  /* UUCP subsystem */
#define LOG_CRON        (9<<3)  /* clock daemon */
#define LOG_AUTHPRIV    (10<<3) /* security/authorization messages (private) */
#define LOG_FTP         (11<<3) /* ftp daemon */

    /* other codes through 15 reserved for system use */
#define LOG_LOCAL0      (16<<3) /* reserved for local use */
#define LOG_LOCAL1      (17<<3) /* reserved for local use */
#define LOG_LOCAL2      (18<<3) /* reserved for local use */
#define LOG_LOCAL3      (19<<3) /* reserved for local use */
#define LOG_LOCAL4      (20<<3) /* reserved for local use */
#define LOG_LOCAL5      (21<<3) /* reserved for local use */
#define LOG_LOCAL6      (22<<3) /* reserved for local use */
#define LOG_LOCAL7      (23<<3) /* reserved for local use */

#define LOG_NFACILITIES 24      /* current number of facilities */
#define LOG_FACMASK     0x03f8  /* mask to extract facility part */
                                /* facility of pri */
#define LOG_FAC(p)      (((p) & LOG_FACMASK) >> 3)

#ifdef SYSLOG_NAMES
CODE facilitynames[] = {
    "auth",     LOG_AUTH,
    "authpriv", LOG_AUTHPRIV,
    "cron",     LOG_CRON,
    "daemon",   LOG_DAEMON,
    "ftp",      LOG_FTP,
    "kern",     LOG_KERN,
    "lpr",      LOG_LPR,
    "mail",     LOG_MAIL,
    "mark",     INTERNAL_MARK,      /* INTERNAL */
    "news",     LOG_NEWS,
    "security", LOG_AUTH,           /* DEPRECATED */
    "syslog",   LOG_SYSLOG,
    "user",     LOG_USER,
    "uucp",     LOG_UUCP,
    "local0",   LOG_LOCAL0,
    "local1",   LOG_LOCAL1,
    "local2",   LOG_LOCAL2,
    "local3",   LOG_LOCAL3,
    "local4",   LOG_LOCAL4,
    "local5",   LOG_LOCAL5,
    "local6",   LOG_LOCAL6,
    "local7",   LOG_LOCAL7,
    NULL,       -1,
};
#endif

#define LOG_PRINTF  -1  /* pseudo-priority to indicate use of printf */

/*
 * arguments to setlogmask.
 */
#define LOG_MASK(pri)   (1 << (pri))            /* mask for one priority */
#define LOG_UPTO(pri)   ((1 << ((pri)+1)) - 1)  /* all priorities through pri */

/*
 * Option flags for openlog.
 *
 * LOG_ODELAY no longer does anything.
 * LOG_NDELAY is the inverse of what it used to be.
 */
#define LOG_PID     0x01    /* log the pid with each message */
#define LOG_CONS    0x02    /* log on the console if errors in sending */
#define LOG_ODELAY  0x04    /* delay open until first syslog() (default) */
#define LOG_NDELAY  0x08    /* don't delay open */
#define LOG_NOWAIT  0x10    /* don't wait for console forks: DEPRECATED */
#define LOG_PERROR  0x20    /* log to stderr as well */

void syslog(int pri, const char *fmt, ...);
void closelog(void);
int openlog(int, int);
int  setlogmask(int);
void syslog(int, const char *, ...);
void vsyslog(int, const char *, va_list);
int getlogmask();
int getlogstat();
const char *syslog_setloghost (const char *host);
const char *syslog_getloghost ();
